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Cheap flights from Seattle to Ireland from €218

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Ireland departing on 13/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
Icelandair Logo
14:35 - 10:15
SEA
-
DUB
11h 40m
1 stop
Icelandair Logo
11:30 - 18:00
DUB
-
SEA
13h 30m
1 stop
€358Icelandair
Tue, 3 Mar - Tue, 10 Mar
Icelandair Logo
15:35 - 10:15
SEA
-
DUB
11h 40m
1 stop
Icelandair Logo
14:15 - 17:55
DUB
-
SEA
11h 40m
1 stop
€366Icelandair
Tue, 17 Mar - Tue, 31 Mar
Delta Logo
11:15 - 11:10
SEA
-
SNN
15h 55m
1 stop
Delta Logo
13:05 - 22:16
SNN
-
SEA
17h 11m
1 stop
€456Delta
Tue, 28 Jul - Wed, 12 Aug
United Airlines Logo
07:40 - 10:15
SEA
-
SNN
18h 35m
2 stops
United Airlines Logo
09:30 - 22:29
SNN
-
SEA
20h 59m
1 stop
€460United Airlines
Tue, 28 Jul - Wed, 12 Aug
Delta Logo
21:55 - 11:10
SEA
-
SNN
29h 15m
1 stop
Delta Logo
13:05 - 22:16
SNN
-
SEA
17h 11m
1 stop
€460Delta
Sat, 1 Aug - Wed, 12 Aug
Multiple Airlines Logo
08:00 - 16:30
SEA
-
ORK
24h 30m
2 stops
Multiple Airlines Logo
16:50 - 21:06
ORK
-
SEA
36h 16m
2 stops
€470Multiple Airlines
Wed, 29 Apr - Fri, 8 May
Multiple Airlines Logo
14:10 - 16:30
SEA
-
ORK
18h 20m
1 stop
Multiple Airlines Logo
16:50 - 21:06
ORK
-
SEA
36h 16m
2 stops
€471Multiple Airlines
Wed, 29 Apr - Fri, 8 May
Lufthansa Logo
14:10 - 16:30
SEA
-
ORK
18h 20m
1 stop
Lufthansa Logo
17:05 - 12:20
ORK
-
SEA
27h 15m
1 stop
€477Lufthansa
Wed, 29 Apr - Fri, 8 May
Lufthansa Logo
07:00 - 16:30
SEA
-
ORK
25h 30m
2 stops
Lufthansa Logo
17:05 - 12:20
ORK
-
SEA
27h 15m
1 stop
€482Lufthansa
Wed, 1 Apr - Thu, 9 Apr
United Airlines Logo
10:52 - 07:30
SEA
-
SNN
12h 38m
1 stop
United Airlines Logo
09:30 - 23:59
SNN
-
SEA
22h 29m
1 stop
€498United Airlines
Thu, 30 Jul - Thu, 13 Aug

United Airlines flights from Seattle to Ireland

Our best United Airlines deals on Seattle to Ireland flight tickets
United Airlines
28 Apr
SEA08:00Seattle/Tacoma Intl
18h 40m
1 stop
DUB10:40Dublin
5 May
DUB09:50Dublin
33h 49m
2 stops
SEA11:39Seattle/Tacoma Intl
€410
United Airlines
28 Apr
SEA10:48Seattle/Tacoma Intl
15h 52m
2 stops
DUB10:40Dublin
5 May
DUB09:50Dublin
33h 49m
2 stops
SEA11:39Seattle/Tacoma Intl
€414
United Airlines
28 Apr
SEA11:35Seattle/Tacoma Intl
38h 10m
2 stops
DUB09:45Dublin
12 May
DUB09:50Dublin
32h 30m
1 stop
SEA10:20Seattle/Tacoma Intl
€416

Icelandair flights from Seattle to Ireland

Our best Icelandair deals on Seattle to Ireland flight tickets
Icelandair
3 Mar
SEA14:35Seattle/Tacoma Intl
11h 40m
1 stop
DUB10:15Dublin
10 Mar
DUB11:30Dublin
13h 30m
1 stop
SEA18:00Seattle/Tacoma Intl
€358
Icelandair
17 Mar
SEA15:35Seattle/Tacoma Intl
11h 40m
1 stop
DUB10:15Dublin
31 Mar
DUB14:15Dublin
11h 40m
1 stop
SEA17:55Seattle/Tacoma Intl
€366
Icelandair
19 Apr
SEA15:40Seattle/Tacoma Intl
13h 35m
1 stop
DUB13:15Dublin
23 Apr
DUB14:15Dublin
11h 40m
1 stop
SEA17:55Seattle/Tacoma Intl
€368

momondo Fare Finder

 
Customise your flight search to find flights from Seattle to Ireland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 13,528 searches. Data last updated 5 February 2026.
Use the filters below to find and compare flights from Seattle to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 3/3

14:35-10:15

1 stop11h 40m

Dublin

Tue 10/3

11:30-18:00

1 stop13h 30m

€358

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 17/3

15:35-10:15

1 stop11h 40m

Dublin

Tue 31/3

14:15-17:55

1 stop11h 40m

€366

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 28/7

11:15-11:10

1 stop15h 55m

Shannon

Wed 12/8

13:05-22:16

1 stop17h 11m

€456

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 28/7

07:40-10:15

2 stops18h 35m

Shannon

Wed 12/8

09:30-22:29

1 stop20h 59m

€460

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sat 1/8

21:55-11:10

1 stop29h 15m

Shannon

Wed 12/8

13:05-22:16

1 stop17h 11m

€460

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Wed 29/4

08:00-16:30

2 stops24h 30m

Cork

Fri 8/5

16:50-21:06

2 stops36h 16m

€470

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Wed 29/4

14:10-16:30

1 stop18h 20m

Cork

Fri 8/5

16:50-21:06

2 stops36h 16m

€471

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Wed 29/4

14:10-16:30

1 stop18h 20m

Cork

Fri 8/5

17:05-12:20

1 stop27h 15m

€477

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Wed 1/4

07:00-16:30

2 stops25h 30m

Cork

Thu 9/4

17:05-12:20

1 stop27h 15m

€482

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Thu 30/7

10:52-07:30

1 stop12h 38m

Shannon

Thu 13/8

09:30-23:59

1 stop22h 29m

€498

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Ireland from

How to get the cheapest flight ticket from Seattle to Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Ireland?

The month of February is another great option to travel to Ireland, with average flight prices from Seattle averaging around €466.

What is the cheapest Seattle/Tacoma Intl to Ireland flight route?

Fly from Seattle/Tacoma Intl to Dublin for the best Seattle/Tacoma Intl - Ireland flight prices

How far in advance should I book a flight to Ireland?

You are more likely to see cheaper flights to Ireland from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around €545 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Seattle for as low as €486 on momondo.

What cabin class options are available on Seattle/Tacoma Intl to Ireland flights?

There is only 1 cabin class available to choose from on Seattle/Tacoma Intl to Ireland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Seattle to Ireland flights?

You could potentially save up to 2% on your flight if you consider stops on a Seattle to Ireland flight.

Cheap Seattle to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Ireland

Fastest flight time

9h 05m

Direct flights

Every day

Airports in Ireland

77 airports
The fastest flight from Seattle to Ireland takes 9h 05m
Direct flights go from Seattle to Ireland every day.
There are 77 airports in Ireland. From Seattle there are direct flights to Dublin (DUB).
Search flight deals

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Ireland?

    Prices for flights from Seattle/Tacoma Intl Airport to Ireland are updated daily.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Ireland?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Ireland.

  • What documentation or ID do you need to fly to Ireland?

    The travel and health documents you'll need for your trip to Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Seattle to Ireland?

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Ireland?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Ireland for you.

Can I find flights from Seattle to Ireland with flexible booking policies on momondo?

momondo does allow users to show only those flights to Ireland from Seattle which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Seattle to Ireland?

momondo helps you find the best flight between Seattle and Ireland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Seattle to Ireland right now. Can momondo alert me if prices change?

Price alerts on flights to Ireland from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Ireland trip

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Find better results for your trip to Ireland

Popular Cities in Ireland

Popular flights according to clicks in the last 7 days on momondo
Flights to Dublinfrom €37
Flights to Corkfrom €86
Flights to Shannon, Clarefrom €92
Flights to Donegalfrom €217
Flights to Milltown (Kerry)from €38